Subject: Re: Gen. Woes/ Flash the Field
Author: Bill Cohoon
Date: Jun 4, 2001, 10:01 AM
Post ID: 1706983615
That was a cool answer... even if you were bs-ing.. it was a great reply
joe jump wrote:
| ============================================================ How do you want to save today? 29 ways to save big bucks on stuff you want - FREE. http://click.topica.com/caaacgDb1dfltb2ryAGa/TopOffers ============================================================ The question was asked about flashing the field on a generator. This is done to rejuvenate a residual magnetism in the field coils. This residual magnetism is required to "get the snowball rollin' down the hill". This magnetism starts the generator making current, which after a point will be high enough to close a set of points in the regulator that supplies battery current to the field coils, which in turn increases the magnetic field, causing more current to be generated in the rotating armature. Without the residual magnetism, the cycle doesn't get started and results in no output. The residual stays in place unless something disrupts it, like a sharp blow (drop), or perhaps disassembly-changing the field windings, or long periods of non-use. Generally it hangs in there. Flashing the field re-establishes the residual magnetism, just like magnetizing a screwdriver or a nail. You flash by crossing the BAT terminal on the regulator to the DF (field?) terminal just momentairily with a jumper wire. Get your FREE download of MSN Explorer athttp://explorer.msn.com |